/*
Theme Name: Bian MB2
Theme URI: https://www.biandlz.com/
Author: Bian
Author URI: https://www.biandlz.com/
Description: 币安风格的加密货币交易平台WordPress主题
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bian_mb2
Tags: dark-theme, cryptocurrency, trading, responsive, modern

This theme, like WordPress, is licensed under the GPL.
Use it to make something cool, have fun, and share what you've learned with others.
*/

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #0f0f0f;
    color: #ffffff;
    line-height: 1.6;
}

a {
    text-decoration: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    background-color: #1a1a1a;
    border-bottom: 1px solid #2a2a2a;
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 24px;
    color: #fbbf24;
    font-weight: bold;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: #a0a0a0;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #fbbf24;
}

.header-right {
    display: flex;
    gap: 12px;
}

.btn {
    padding: 8px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #fbbf24;
    color: #1a1a1a;
}

.btn-primary:hover {
    background-color: #f59e0b;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border: 1px solid #3a3a3a;
}

.btn-secondary:hover {
    background-color: #2a2a2a;
    border-color: #fbbf24;
    color: #fbbf24;
}

.btn-large {
    padding: 12px 32px;
    font-size: 16px;
}

.btn-sm {
    padding: 8px 24px;
    font-size: 14px;
}

.hero {
    padding: 60px 0;
    background: linear-gradient(180deg, #1a1a1a 0%, #0f0f0f 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.hero-content {
    padding-right: 20px;
}

.hero-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.logo-icon-large {
    font-size: 48px;
    color: #fbbf24;
    font-weight: bold;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #ffffff;
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 600;
    color: #fbbf24;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 16px;
    color: #a0a0a0;
    margin-bottom: 30px;
    max-width: 500px;
}

.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 30px;
}

.feature-card {
    background-color: #1a1a1a;
    border-radius: 8px;
    padding: 20px;
    border: 1px solid #2a2a2a;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: #fbbf24;
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 24px;
    margin-bottom: 12px;
}

.feature-title {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 14px;
    color: #a0a0a0;
}

.hero-info {
    font-size: 14px;
    color: #6a6a6a;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.hero-sidebar {
    padding-left: 20px;
}

.app-download {
    background-color: #1a1a1a;
    border-radius: 12px;
    padding: 30px;
    border: 1px solid #2a2a2a;
}

.download-title {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    margin-bottom: 8px;
}

.download-desc {
    font-size: 14px;
    color: #a0a0a0;
    text-align: center;
    margin-bottom: 30px;
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

.download-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: #2a2a2a;
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.download-item:hover {
    background-color: #3a3a3a;
    transform: translateX(4px);
}

.download-icon {
    font-size: 28px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #1a1a1a;
    border-radius: 8px;
    color: #fbbf24;
}

.download-icon svg {
    width: 24px;
    height: 24px;
}

.download-icon.android svg {
    color: #3ddc84;
}

.download-icon.ios svg {
    color: #ffffff;
}

.download-icon.windows svg {
    color: #0078d4;
}

.download-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.download-label {
    font-size: 12px;
    color: #6a6a6a;
}

.download-platform {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
}

.download-arrow {
    font-size: 20px;
    color: #fbbf24;
    font-weight: bold;
}

.qr-section {
    display: flex;
    gap: 24px;
    padding-top: 20px;
    border-top: 1px solid #2a2a2a;
}

.qr-code {
    flex-shrink: 0;
}

.qr-placeholder {
    width: 140px;
    height: 140px;
    background-color: #ffffff;
    border-radius: 12px;
    padding: 10px;
}

.qr-pattern {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #1a1a1a 25%, transparent 25%),
                linear-gradient(-45deg, #1a1a1a 25%, transparent 25%),
                linear-gradient(45deg, transparent 75%, #1a1a1a 75%),
                linear-gradient(-45deg, transparent 75%, #1a1a1a 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    border-radius: 4px;
}

.qr-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.qr-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
}

.qr-info p {
    font-size: 13px;
    color: #a0a0a0;
    line-height: 1.6;
}

.qr-link {
    font-size: 13px;
    color: #fbbf24;
    text-decoration: none;
    margin-top: 8px;
}

.qr-link:hover {
    text-decoration: underline;
}

.steps {
    padding: 60px 0;
    background-color: #0f0f0f;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    margin-bottom: 48px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.step-card {
    background-color: #1a1a1a;
    border-radius: 12px;
    padding: 32px;
    border: 1px solid #2a2a2a;
    text-align: center;
    transition: all 0.3s ease;
}

.step-card:hover {
    border-color: #fbbf24;
    transform: translateY(-4px);
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #fbbf24;
    color: #1a1a1a;
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
}

.step-desc {
    font-size: 14px;
    color: #a0a0a0;
    margin-bottom: 24px;
    line-height: 1.8;
}

.footer {
    background-color: #1a1a1a;
    border-top: 1px solid #2a2a2a;
    padding: 30px 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
}

.footer-link {
    text-decoration: none;
    color: #6a6a6a;
    font-size: 13px;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #fbbf24;
}

.footer-disclaimer {
    font-size: 12px;
    color: #4a4a4a;
    margin-bottom: 12px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.footer-copyright {
    font-size: 12px;
    color: #3a3a3a;
    margin-bottom: 12px;
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-content {
        padding-right: 0;
    }
    
    .hero-sidebar {
        padding-left: 0;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .header-right {
        gap: 8px;
    }
    
    .btn {
        padding: 6px 14px;
        font-size: 13px;
    }
    
    .logo-text {
        font-size: 16px;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .qr-section {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 12px;
    }
}

.breadcrumb-section {
    background-color: #1a1a1a;
    border-bottom: 1px solid #2a2a2a;
    padding: 16px 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb-item {
    font-size: 14px;
    color: #a0a0a0;
    transition: color 0.3s ease;
}

.breadcrumb-item:hover {
    color: #fbbf24;
}

.breadcrumb-item.active {
    color: #fbbf24;
}

.breadcrumb-separator {
    color: #3a3a3a;
}

.list-section {
    padding: 40px 0;
    background-color: #0f0f0f;
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.page-desc {
    font-size: 16px;
    color: #a0a0a0;
    margin-bottom: 32px;
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.article-card {
    display: flex;
    gap: 24px;
    background-color: #1a1a1a;
    border-radius: 12px;
    padding: 24px;
    border: 1px solid #2a2a2a;
    transition: all 0.3s ease;
}

.article-card:hover {
    border-color: #fbbf24;
    transform: translateY(-2px);
}

.article-image {
    flex-shrink: 0;
    width: 200px;
    height: 140px;
    border-radius: 8px;
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 100%);
}

.article-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-tag {
    display: inline-block;
    padding: 4px 12px;
    background-color: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    align-self: flex-start;
    margin-bottom: 12px;
}

.article-title {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 12px;
    line-height: 1.4;
}

.article-title a {
    color: #ffffff;
    transition: color 0.3s ease;
}

.article-title a:hover {
    color: #fbbf24;
}

.article-excerpt {
    font-size: 14px;
    color: #a0a0a0;
    line-height: 1.7;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #6a6a6a;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.pagination-link {
    padding: 10px 16px;
    background-color: #1a1a1a;
    color: #a0a0a0;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid #2a2a2a;
    transition: all 0.3s ease;
}

.pagination-link:hover {
    border-color: #fbbf24;
    color: #fbbf24;
}

.pagination-link.active {
    background-color: #fbbf24;
    color: #1a1a1a;
    border-color: #fbbf24;
}

.pagination-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-link.disabled:hover {
    border-color: #2a2a2a;
    color: #a0a0a0;
}

.content-section {
    padding: 40px 0;
    background-color: #0f0f0f;
}

.content-article {
    max-width: 1200px;
    margin: 0 auto;
}

.content-header {
    margin-bottom: 40px;
}

.content-tag {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
    font-size: 13px;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 16px;
}

.content-title {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.3;
    margin-bottom: 20px;
}

.content-meta {
    display: flex;
    gap: 24px;
    font-size: 14px;
    color: #6a6a6a;
}

.content-featured-image {
    margin: 30px 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.featured-image {
    width: 100%;
    height: auto;
    display: block;
}

.content-body {
    margin-bottom: 40px;
}

.content-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
    display: block;
}

.content-body a {
    color: #fbbf24;
    transition: color 0.3s ease;
}

.content-body a:hover {
    color: #f59e0b;
}

.content-body p {
    font-size: 16px;
    color: #c0c0c0;
    line-height: 1.8;
    margin-bottom: 24px;
}

.content-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin-top: 40px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #2a2a2a;
}

.content-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-top: 24px;
    margin-bottom: 12px;
}

.content-body h4 {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin-top: 20px;
    margin-bottom: 10px;
}

.content-body ul,
.content-body ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.content-body ul li,
.content-body ol li {
    font-size: 16px;
    color: #c0c0c0;
    line-height: 1.8;
    margin-bottom: 8px;
}

.content-body blockquote {
    border-left: 4px solid #fbbf24;
    padding: 16px 20px;
    background-color: rgba(251, 191, 36, 0.05);
    margin: 24px 0;
    border-radius: 0 8px 8px 0;
}

.content-body blockquote p {
    font-style: italic;
    color: #a0a0a0;
    margin-bottom: 0;
}

.content-body code {
    background-color: #1a1a1a;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #fbbf24;
}

.content-body pre {
    background-color: #1a1a1a;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 24px 0;
    border: 1px solid #2a2a2a;
}

.content-body pre code {
    background: none;
    padding: 0;
    color: #c0c0c0;
}

.content-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

.content-body th,
.content-body td {
    padding: 12px;
    border: 1px solid #2a2a2a;
    text-align: left;
}

.content-body th {
    background-color: #1a1a1a;
    color: #ffffff;
    font-weight: 600;
}

.content-body td {
    color: #c0c0c0;
}

.content-paragraph {
    font-size: 16px;
    color: #c0c0c0;
    line-height: 1.8;
    margin-bottom: 24px;
}

.content-heading {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin-top: 40px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #2a2a2a;
}

.content-subheading {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-top: 24px;
    margin-bottom: 12px;
}

.content-list {
    margin-bottom: 24px;
    padding-left: 24px;
}

.content-list li {
    font-size: 16px;
    color: #c0c0c0;
    line-height: 1.8;
    margin-bottom: 8px;
}

.content-footer {
    padding-top: 32px;
    border-top: 1px solid #2a2a2a;
}

.content-tags {
    margin-bottom: 24px;
}

.tag-label {
    font-size: 14px;
    color: #6a6a6a;
}

.content-tag-link {
    display: inline-block;
    padding: 6px 12px;
    background-color: #1a1a1a;
    color: #a0a0a0;
    font-size: 13px;
    border-radius: 4px;
    margin-left: 8px;
    border: 1px solid #2a2a2a;
    transition: all 0.3s ease;
}

.content-tag-link:hover {
    border-color: #fbbf24;
    color: #fbbf24;
}

.content-share {
    margin-top: 24px;
}

.share-label {
    font-size: 14px;
    color: #6a6a6a;
    margin-right: 12px;
}

.share-btn {
    padding: 8px 16px;
    background-color: #1a1a1a;
    color: #a0a0a0;
    font-size: 13px;
    border: 1px solid #2a2a2a;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 8px;
    transition: all 0.3s ease;
}

.share-btn:hover {
    border-color: #fbbf24;
    color: #fbbf24;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 0;
    margin: 40px 0;
    border-top: 1px solid #2a2a2a;
    border-bottom: 1px solid #2a2a2a;
}

.post-nav-item {
    flex: 1;
}

.nav-label {
    display: block;
    font-size: 12px;
    color: #6a6a6a;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.post-nav-item .nav-link {
    font-size: 15px;
    color: #c0c0c0;
    line-height: 1.5;
    transition: color 0.3s ease;
}

.post-nav-item .nav-link:hover {
    color: #fbbf24;
}

.post-nav-item.next {
    text-align: right;
}

.related-posts {
    margin-top: 40px;
    padding-top: 40px;
}

.related-title {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 24px;
}

.related-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.related-card {
    display: flex;
    gap: 20px;
    padding: 20px;
    background-color: #1a1a1a;
    border-radius: 8px;
    border: 1px solid #2a2a2a;
    transition: all 0.3s ease;
}

.related-card:hover {
    border-color: #fbbf24;
}

.related-image {
    flex-shrink: 0;
    width: 150px;
    height: 100px;
    border-radius: 6px;
    overflow: hidden;
}

.related-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.related-tag {
    display: inline-block;
    padding: 3px 10px;
    background-color: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
    font-size: 11px;
    font-weight: 600;
    border-radius: 3px;
    align-self: flex-start;
    margin-bottom: 8px;
}

.related-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.4;
    margin-bottom: 8px;
}

.related-content h4 a {
    color: #ffffff;
    transition: color 0.3s ease;
}

.related-content h4 a:hover {
    color: #fbbf24;
}

.related-excerpt {
    font-size: 13px;
    color: #6a6a6a;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .article-card {
        flex-direction: column;
    }
    
    .article-image {
        width: 100%;
        height: 200px;
    }
    
    .page-title {
        font-size: 28px;
    }
    
    .content-title {
        font-size: 28px;
    }
    
    .content-meta {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .pagination-link {
        padding: 8px 12px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .app-download {
        padding: 20px;
    }
    
    .step-card {
        padding: 24px;
    }
    
    .breadcrumb {
        font-size: 13px;
    }
    
    .page-title {
        font-size: 24px;
    }
    
    .content-title {
        font-size: 24px;
    }
}